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ASTM 317LMN - EN 1.4439

ASTM 317LMN - EN 1.4439

EN 1.4439 is a modification of the 316 and 317 grades, boasting superior Nickel, Molybdenum, and Nitrogen levels; greatly heightening protection against pitting and crevice corrosion in Cl-rich environments.

Equivalent grades

• DIN 1.4439
• UNS S31726
• X2CrNiMoN17-13-5

Chemical Composition Reference


Physical Property Reference

• Density: 8.00 g/cc

• Tensile Strength: 640 MPa

• Yield Strength: 270 MPa

• Specific Heat Capacity: 0.500 J/g-°C

• Thermal Conductivity: 14.0 W/m-K

Stock & Dimensions

Our warehouse has a large number of stock to provide you with a variety of products in different sizes, and can also customize the size according to your needs.
• Bar: 0.5~600mm Diameter
• Coil: 0.5~150mm Thick
• Plate: 0.5~200mm Thick
• Pipe: 6~630mm External Diameter; 0.5~40mm Wall Tick
• Available in specific sizes

Product Forms

We provide you with a variety of product forms, including but not limited to:
• Bar/Rod
• Pipe/Tube
• Coil/Strip
• Plate/Sheet/Circle
• Wire
• Fitting (Flange, Elbow, Tee...)
• Customize

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ASTM 317LMN - EN 1.4439

Essential details
EN 1.4439 stainless steel is an austenitic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the solution annealed (AT) condition. 1.4439 is the EN numeric designation for this material. X2CrNiMoN17-13-5 is the EN chemical designation.

It has a moderately low electrical conductivity among wrought austenitic stainless steels. In addition, it has a moderately high embodied energy and a moderately high base cost.

Typical Applications:

- Wet corrosion resistance and general service

- Plant manufacturing

- Petro chemical

- Machine engineering

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